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[PATCH v2 14/44] block: Avoid error accumulation in bdrv_img_create()
From: |
Markus Armbruster |
Subject: |
[PATCH v2 14/44] block: Avoid error accumulation in bdrv_img_create() |
Date: |
Thu, 2 Jul 2020 17:49:30 +0200 |
When creating an image fails because the format doesn't support option
"backing_file" or "backing_fmt", bdrv_img_create() first has
qemu_opt_set() put a generic error into @local_err, then puts the real
error into @errp with error_setg(), and then propagates the former to
the latter, which throws away the generic error. A bit complicated,
but works.
Not that qemu_opt_set() returns a useful value, we can simply ignore
the generic error instead.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
---
block.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/block.c b/block.c
index 8d478bdc51..b396f32a51 100644
--- a/block.c
+++ b/block.c
@@ -6090,7 +6090,7 @@ void bdrv_img_create(const char *filename, const char
*fmt,
if (base_filename) {
if (!qemu_opt_set(opts, BLOCK_OPT_BACKING_FILE, base_filename,
- &local_err)) {
+ NULL)) {
error_setg(errp, "Backing file not supported for file format '%s'",
fmt);
goto out;
@@ -6098,7 +6098,7 @@ void bdrv_img_create(const char *filename, const char
*fmt,
}
if (base_fmt) {
- if (!qemu_opt_set(opts, BLOCK_OPT_BACKING_FMT, base_fmt, &local_err)) {
+ if (!qemu_opt_set(opts, BLOCK_OPT_BACKING_FMT, base_fmt, NULL)) {
error_setg(errp, "Backing file format not supported for file "
"format '%s'", fmt);
goto out;
--
2.26.2
- [PATCH v2 20/44] s390x/pci: Fix harmless mistake in zpci's property fid's setter, (continued)
- [PATCH v2 20/44] s390x/pci: Fix harmless mistake in zpci's property fid's setter, Markus Armbruster, 2020/07/02
- [PATCH v2 36/44] error: Eliminate error_propagate() manually, Markus Armbruster, 2020/07/02
- [PATCH v2 25/44] qom: Use return values to check for error where that's simpler, Markus Armbruster, 2020/07/02
- [PATCH v2 43/44] qdev: Ignore Error objects where the return value suffices, Markus Armbruster, 2020/07/02
- [PATCH v2 41/44] error: Avoid error_propagate() after migrate_add_blocker(), Markus Armbruster, 2020/07/02
- [PATCH v2 12/44] qemu-option: Make functions taking Error ** return bool, not void, Markus Armbruster, 2020/07/02
- [PATCH v2 14/44] block: Avoid error accumulation in bdrv_img_create(),
Markus Armbruster <=
- [PATCH v2 23/44] qom: Crash more nicely on object_property_get_link() failure, Markus Armbruster, 2020/07/02
- [PATCH v2 32/44] qdev: Use returned bool to check for failure, Coccinelle part, Markus Armbruster, 2020/07/02
- [PATCH v2 34/44] error: Eliminate error_propagate() with Coccinelle, part 1, Markus Armbruster, 2020/07/02